Driving mechanism for domestic appliances



Dec. 17; 1946. B, DY R 2,412,722

DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. 20, 1943 8Sheets- Sheet 1 FIGI INVEN TOR.

Dec. 17, 1946. J DYER 2,412,722

DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. 20, 1945 8Sheets-Sheet 2 N 1 VENTOR I I m; g

Dec. 17, 1946, J, DYER DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. 20, 1943 8 Sheets--Sheet 3 8 l 8 W m J 8 8 I F 5% o vlnfl n a t fl O 7 8 w I H w? 7. 3 I 3 HHHHHH HHU 7 6 3 8 7 I 3 lull! m.\\\|\l Q90 flnuu 9 9 d. I m .5 )3 g 8 BY BINVEIf/TOI? %W Zuumfl 17,1946. J. B. DYER DRIVIN MECHANISM FOR DOMESTIC APPLIANCES Original FiledJan. 20, 1943 8 Sheets-Sheet 4 6 IN V EN TOR.

Dec. 17, 1946. B, D ER 2,412,722

DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. -20, 19438 Sheets-Sheet- 5 FIG].

v EN VEN TOR. 2

13. 17, 1946. J. B. DYER 2,412,722

DRIVING MECHANISM FOR DOMESTIC APiLIANCES 8 Sheefs-Sheet 6 OriginalFiled Jan. 20, 1943 8? VENTOR. $-J

1946. J. B. DYER 2 2,412,722

DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. 20, 1943 8Sheets-Sheet 7 Dec. 17, 1946. I J. B. DYER, 2,4

I DRIVING MECHANISM FOR DOMESTIC APPLIANCES Original Filed Jan. 20, 1 913 8 Sheets-Sheet 8 CAMS m OPERATION FILL TUB YARIA BL;

SPIN WASH H |O4 G I WATER m'n'o RESERVOIR PUMP amsE a INTO TUB AGITATEmuss e INTO SEWER PUMP muse *2 mm TUB AGITATE mus: "a

SPIN mus: "a mro nmss "I RESERVOIR ARM opens SWITCH AND STOPS oron F i IBY flINVE/VTOR.

5 \ms'u PERIOD smuemsa a Patented Dec. 17, 1946 OFFICE DRIVING MECHANISMFOR DOMESTIC APPLIANCES John B. Dyer, Syracuse, N. Y., asslgnortoGeneral Motors Corporation, Dayton, Ohio, a corporation of DelawareApplication January 20, 1943, Serial No. 472,933,

which is a division of 227,519, August 30, 1938.

application Serial No. Divided and this application March 16, 1944,Serial No. 526,781

7 Claims.

This application is a division of my application S. N. 472,933, filedJanuary 20, 1943, which in turn is a division of my application S. N.227,519 filed August 30, 1938, now Patent No. 2,325,837, and isparticularly directed toward the arrangement disclosed therein whereby adriving means rotates a sleeve or reciprocates a shaft within the sleevewhile the sleeve is held stationary.

It is an object of this invention to provide an arrangement for rotatinga sleeve and reciprocating a shaft within the slee e wherein anautomatic control causes the sleeve to be held stationary while theshaft reciprocates when the control is in one condition of operation butwhen the control is in another condition of operation, the sleeve isrotated by the driving means.

Further objects and advantages of the present invention will .beapparent from the following description, reference being had to the'accompanying drawings, wherein a preferred form of the presentinvention is clearly shown.

In the drawings:

Fig. 1 is a vertical cross-section of the tub and driving parts of awashing machine embodying my invention;

Fig. 2 is a cross-section of my washing machine,

showing the outer casing and several other parts in cross-section;

Fig. 3 is a cross-section transverse to Fig. 2;

Fig. 4 is a vertical cross-section taken along the line 4-4 of Fig. 1;

Fig. 5 is a vertical cross-section showing the clutch mechanism;

Fig. 6 is a perspective view of the exterior of the washing machine;

Fig. 7 is an end elevation machine;

Fig. 8 is a cross-section of the automatic controlling mechanism;

Fig. 9 is a diagrammatic representation oiithe various cams used in thecontrolling mechanism;

Fig. 10 is a cross-section taken along the line IO-l of Fig.8; 1 Fig. 11is a cross-section taken along the line ll'll of Fig. 8;

Fig. 12 is a cross-section taken along the line |2 |2 of Fig. 8;

of the washing Figs. 13, 14 and 15 are cross-sections of portions ofsolenoids which may be used in connection with my invention;

Fig. 16 is a wiring diagram showing the application of the automaticcontrol of the various parts of the washing machine; and

Fig. 17 is a time sheetindicating how the varon the floor.

soap solution may be placed in one reservoir and first and second rinsewaters may be placed in their respective reservoirs. The automaticcontrols may then be set for a selected length of wash period and themachine started. Thereafter the washing machineautomatlcally pumps thesoap. solution into the tub; agitates the clothes for the selectedlength of time in the soap solution; centrifuges the soap solution outof the clothes and back to its reservoir for subsequent use; piunps thefirst rinse water into the tub; agitates the clothes in the first rinsewater for the proper length of time; centrifuges the first rinse waterinto a sewer connection; pumps the second rinse water into the tub;agitates the 20 clothes in the second rinse water for the proper lengthof time; centrifuges the secondrinse water into the first rinse waterreservoir for use, as first rinse water, with a subsequent "batch ofclothes; and then stops the motor of the machine in readiness forfurther washings or for proper cleansing of the machine at thecompletion of the washing operations. a

My washing machine preferably is enclosed in a streamlined casing l0adapted to be supported on the door. The casing preferably contains themoving parts of the washing machine, reservoirs in which to store thevarious washing fluids, and the automatic controls whichcause thewashing machine to perform, in proper sequence, the varions washingoperations necessary to wash, and

rinse the clothes and extract excess fluids therefrom.

The casing i0 is provided with, or supported on,

a plurality of vertical supporting standards ll' 40 and it.

These standards support the moving parts of the washing machine. To thisend, standards II are arched at l3, to provide supports for the rods l4.Some of the standards II are provided with pedestals or casters l3a torest The machine may be provided with other pedestals or casters l3b, asdesired. The rods H are provided with rubber or rubber-like,

.end members l5 and I 8 to insulate them both from a noise and avibration standpoint. These rods are supported at their upper end by thearched portions I3 of the rods ii and support, at their lower ends, aframe l1 upon which the tub II, and the driving parts therefor aresupported. The rods l4 andirame i1 therefore'provide a free swingingsupport for the tub and the driving touching the casing of washing fluidin the tub are joined to the relatively stationary parts of the washingmachine by flexible hose connections, and, where control knobs, etc.,are supported on the swinging parts of the washing machine and pass"through the casing I0, suitable openings are provided to allow suchcontrol rods to vibrate with the swinging parts, without The tub |8preferably is mounted for spinning or rotation about a vertical axis toperform the extracting or centrifuging action. A vertically pulsating,cone-shaped agitator I3 is placed within the tub. The arrangement issuch that arti-,

cles to be washed can be placed in the tub l8, a proper washingsolution, and first and second rinse waters can be placed in thereservoirs 25,

2| and 22. Thereafter, by proper setting of the control mechanism, theclothes are automatically washed .in the washing solution, centrifuged,rinsed, centrifuged, rinsed, and again centrifuged to provide thecomplete washing of the clothes, in situ. The articles to be washed areagitated in the various washing fluids, which form bodies |8, by aseries of strong, pulsating, radially outwardly directed currents of thefluid at the bottom of the body of fluid in the tub fluid is removedfrom the articles to be washed by imparting, in situ, a whirlingcentrifugal action to the tub |5. The various mechanisms with whichthese steps are carried out are illustrated in the drawings. a

The cone-shaped agitator I5 is preferably provided with a cone-shapedrubber, or rubber-like, rim 23 along its lower edge. The agitator issupported on the upper end of avertically reciprocable rod 24. Asuitable metallic or rubberlike diaphragm 25a is provided nearthe rod 24or agitator 19 of the tub Hi to prevent the flow of liquid along the rod24. The rod 24 is vertically reciprocate'd by means of a Scotch-yokemechanism 25 at its lower end. The Scotch yoke mechanism is of such acharacter that it imparts a vertical reciprocating movement to the rod24 and permits the same to rotate with the tub l5 when the tub isrotated.

The agitator I5 preferably is givena vertical reciprocating movement ofabout 1 inches to 2 inches, at a speed of minute. Preferably the tubinches in diameter at the top. When clothes are I3 is about 20 to 25placed in the tub, with liquid nearly to the top,

and the agitator is reciprocated at the rate above given, a veryefficient washing action is obtained. The agitator tends to impart asmokersrlng or toroidal movement to the clothes and water, and thisflexes the clothes continuously during the washing operation and freesthe dirt from them. The ring 23 tends to impart, a rubbing action to theclothes and acts as a ducks foot" in imparting strong pulsating,radially outwardly directed water currents at the bottom of the tub,

which, in turn, impart the smokers ring" agitation to the main body ofwater.

The Scotch yoke mechanism 25 includes the portion 25 provided with ahorizontal slot 21 which is engaged by the pin 25 eccentrically carliedon the disc 23. The disc 29 is rotated by the shaft 33. The rod 24 issecured to a ring 3| which is rotationally free in the slot 32. so thatl5. Thereafter the washin about 450 pulsations per when the portion 25is reciprocated. the ring 32 and rod 24 are also reciprocated. On theother hand, when the tub is rotated, the agitator l5, rod 24 and ring 3|can rotate independently of 5 the, portion 25.

The tub and on the swinging frame |'I.' The driving mechanism includes amotor 33 suspended from the bracket 34. The motor 33 has a drivingconnection to-impart rotation to the tub l5. To this end, the motor 33drives a shaft 35, provided with a worm 35 engaging the gear wheel 31.The gear wheel 31 is keyed to a hollow shaft 35, which carries. at itsupper end a platform 39, bolted to the bottom of the tub l5. The shaft38 is provided with ball bearings 40 and 4|, the ball hearing 4|preferably being a thrust bearing, to re ceive the weight of the tub.The reclprocable shaft 24 is loosely mounted within the shaft .38

and preferably is provided with sleeve bearings 42 and 43.

The motor driven shaft 35 is provided with clutch means 44 forselectively connecting the tub centrifugal drive, or an agitatorreciprocating 5 drive with the motor 33. The clutch means includes thecentrifugal clutch 45 and the reciprocating clutch 45. These clutchesare actuated by a reciprocable rod 41 in such a manner that when the rod41 ismoved to the right, Figs.

1 and 5, the centrifugal clutch 45 is engaged, and

when the rod 41 is moved to the left the recipro-- eating clutch 45 isengaged. When theclutch 45 is engaged, the worm is rotated, thus causingcentrifugal rotation of the tub. When the clutch 35 is engaged, the gear43 is rotated, which in turn drives the large gear wheel 49 carried bythe shaft 35. Rotation of the shaft 35 causes reciprocation of theagitator |9 through the medium of the shaft 24.v

Any suitable type of selective clutch mechanism may be used. Forexample, the clutch mechanism shown in Fig. '5 includes driven discs 55and 5| and driving discs 52 and 53 carried by the cups 52a and 53a,respectively, 45 shaft 35. Spring urges the clutch discs 50 and 52 intoengagement while spring urges the clutch discs 5| and 53 intoengagement. The rod 41 carries brake elements 55 and 51. When the rod ismoved to the right, as shown .inFig. 50 5, the brake element 51 engageswith thebrake disc 58 and removes the spring pressure of spring v 54from the discs 55 and 52 thus disengaging the reciprocating drive andapplying a braking action to it. At the same time, the brake element 5555 is moved away from thebrake disc 53. This permits the force of thespring 55 to be applied to the discs5| and 53 thus bringing the sleeve50, carrying the worm 36, into driving engagement with the shaft 35,thus causing centrifugal 60 rotation of the tub. Conversely, when theshaft 41 is moved to the left, the discs 5| and 53 are disengaged, andthe discs 55 and 52 are engaged, thus connecting the agitator I! to themotor through the medium of shaft 35, discs 53 and 52, etc., the discs53 being keyed on sleeve 43a carrying gear 45.

The shaft 41 is moved to the right by spin solenoid 41a and to the leftby agitation solenoid 415. These solenoids are automaticallyenergized atthe proper times by the control mechanisn herein more fully described.When neither solenoid is energized, both the tub and the agitate].remain stationary, since bothclutches 45 and-4| are disengaged at"neutral" position of rod 41. The washing machine may be provided witldriving mechanism are mounted keyed to the liquid flow connections maybe provided for introducing liquids from the reservoirs 28, 2I and Y 22into the tub I8, for returning such liquids from the tub into the properreservoirs or for discharging the liquid from the tub into a suitabledrain connection. i8 is provided, which is drivingly engaged with themotor 33 through the medium of a clutch II and a felt drive I2, theclutch 1| being actuated by the solenoid I3. The intake of the pump I8is connected, by a partly'fiexible pipe with the reservoirs 28, 2I and22 through the medium of branches I5, I6 and 1! respectively, whichbranches are provided I9 and 88 respectively. The discharge of the pumpI8 is connected through the medium of a partly flexible pipe 8I,solenoid valve 82 and pipe drain trough 85 is placed around the upperportion of the tub I8, so that liquid can be discharged from the tubthrough the slotted opening 86 into the trough 85. From thence theliquid can be discharged into the reservoirs 28 or 2I as selected by thesolenoid valve 81, through the medium of pipes 88 and 89. The pipes I4and 8| are rendered partially flexible by rubber hose sections 14a and8Ia.

The various operations of the washing machine may be automatically pose,the motor 33 is drivingly connected, through belt 98, with a controlswitch box 9I, which is provided with suitable cam actuated switches toperform the desired sequence of operations. The

pulley 92, by proper gear reduction mechanism in gear box 93 drives thecone-shaped gear 94 at a reduced rate. The gear 94 is engageably anddisengageably connected to the internal coneshaped gear wheel 95 todrive the shaft 99 at slow speed. The shaft 96 is longitudinally movableby the handle 91, through the forked crank 91a and disc 9'lbsecured toshaft 96, to bring into engagement or disengagement the gears 94 andWhen the gears are disengaged by movement of handle 91, the shaft 96 canbe positioned at any initial starting adjustment by means of thepositioning knob 99 for initiating the, washing cycle. When the handle91 is released, spring II8 returns shaft 961eftward.

The first manipulation as to set the drive crank 99 drive shaft 96 to berotated a selected period of time before the members 99 and I88 comeintodriving engagement. The time that shaft 96 rotates before the members 99and I88 engage each other is the period A during which the tub I9 isfilled with soap solution and the period 13 during which the clothes areagitated in the soap solution. .This period B is adjustably selectableto provide a variable wash period, ofa length desired by the user,during which the clothes are agitated in the soap solution. After themembers 99 and I88 come into engagement, the shaft 86a is rotated, andthe remaining washing operations C to I are controlled by the cams I8Ito I86 inclusive, which are mounted on shaft 96a, which starts itsrotation at the termination of wash period B. The initial tub fillingperiod A, during which the pump withdraws soap solution from reservoir28 and discharges it into the tub I8 is performed by cam I81, afterwhich the varlable soap was period B is determined by the originalsetting of the distance between members with solenoid valves 18,

controlled. For this purthe time that shaft at can rotate before itstarts rotating shaft 98a.

Fig. 16 shows the action of the various: cams.

' 6 99 and I 88 which selects After the clothes have been placed in thetub I8,

the cover I88 is closed and the soap solution and rinses are placed inreservoirs 28, 2| and 22 through the hinged door opening I880. The

switch I89 is turned to the "on or closed position. The handle 91 isthen moved outwardly tioned at its selected position gagement, the shaftto disengage the gears 94 and 95 and the knob 98 is turned to the properindex (see Fig. 6) to pro,- vide the desired length of washing period B.The handle 91 is then released, so that the spring II 8 moves the shaft96 to the left and engages the gears 98 and 98. The cam I8! is providedwith a following switch III, carried I I2, so that when the shaft thecontacts [I3 of the switch III are closed and remain closed a suflicientlength of time to pump the soap solution from the reservoir 28 into thetub I8. The closing of contacts II3 energizes the pump clutch solenoidI3 and the soap solution valve I8 to cause the pumping operation. Thecontacts I I3 remain closed a suflicient length of time to permit all ofthe liquid to be transferred from the reservoir 28 into the tub I8.During the time that the tub is being filled, the tub and agitator arestationary since the solenoids 41a and "bare not energized. When thecircuits to pump clutch solenoid I3 or to spin solenoid 41a are closedthe relay switch I I8 is opened, thus preventing periodof time A andbefore the members 99 and I88 come into engagement.

After the members 99 and I88 come into en- 99a begins to rotate and thecam I8I moves to close contacts II5, as indicated by the time sheet,Fig. 17, period C. The closing of the contacts II5 energizes thesolenoid lla and deenergizes solenoid 41b, thuschanging the drive fromagitation to spinning and causing the clothes to be centrifuged for asuitable period of time C, as long as the corresponding knob cf cam I8Ikeeps the switch II5 closed. The soap solution, during this centrifugingperiod, is discharged into the trough 85 and from thence flows throughthe valve 81 and pipe 88 back into the reservoir 28 for reuse with thesecond batch of clothes. The valve 81 is of the character shown in Fig.14, and, when unenergized, causes liquid to flow into the pipe 88 ratherthan into the pipe 89.

The next operation D, the pumping of the first rinse water into tub I8,takes place, as indicated by Fig. 17, when cams I84 and I85 close theirrespective switches H6 and Ill. The closing of switch II6 energizes thepump solenoid 13, which, by the means of cantilever II8, acting againsttension spring II8a, engages the pump clutch II and drives the pump I8.The closing of switch H6 also energizes and opens relay- H4 7 thuspreventing agitation. At the same time, the

closing of the switch I ll energizes the solenoid valve I9 of thereservoir 2| and causes the pump by a movable arm 99 is initially posi-I9 continues to bewash period of timeduring period E, the cams IN,

I close their respective closing of contacts to pump the first rinsewater from reservoir by the opening of switch IIB by cam IE5, operationE takes place by the consequent deenergization and closing of relay Hil. This energizes agitation solenoid Mb and causes agitation of theclothes during period E;

After the clothes have been properly agitated Hi2, I03, EM and contactsH5. H8, H9. H6 and Ill during period F to cause the first rinse water tobe discharged from tub iii into sewer connection 8%. This isaccomplished by centrifuging the first rinse into reservoir 2! andpumping it from thence into sewer connection 8%. The closing of switchH5 causes the tub to spin by the energization of solenoid Ma, andprevents agitation by the energization and opening of relay H4. Theclosing of switch H8 energizes solenoid valve 81, so that the rinsewater being centrifuged flows through pipe 89 into the reservoir 2|. Theclosing of the contacts are energizes the solenoid valve 82, so that thedischarge from the pump Ill, and from reservoir 26 is directed to thesewer connection 85. The closing of switch IIB energizes the pump clutchand stops the agitator, and the closing of switch Iil energizes valveit, so that the pump hi can remove the soiled first rinse water as fastas it is returned to reservoir 2i and can discharge it to the sewerconnection 86..

Thereafter operation'G takes place during which the second rinse ispumped from reservoir 22 into tub I8. Cam I05 keeps the switch Htclosed. and the cam it closes the contacts in. S nce the contacts litremain closed, the pump continues to operate and relay t remains open toprevent actuation of the agitator, and the I energizes the solenoidvalve '89 and causes the pump 10 to pump the second rinse water fromreservoir 22 into the tub it. The agitator and tub are stationary duringthis period.

During period H the clothes are agitated in the second rinse water.During this period all pumping operations are stopped and the agitator.is actuated since'relay i it is closed.

Thereafter, during period I, the final cen=- trifugal spinning actiontakes place, and the second rinse water is directed into reservoir M foruse with the next subsequent batch of clothes because cams NH and I02close their respective contacts H5 and lit to spin'the tub and toenergize valve 8'! and direct the extracted rinse water into reservoir2i.

The continued rotation of the control device brings the arm I00 intoengagement with the switch I2I at point I2Ia (Fig. 12) toopen itscontacts. The opening of contacts I2i stops the motor 33 and stops alloperations, so that the washed and dried clothes can be removed from thetub It during the indefinitelylong period of time J during which allwashing operations are stopped. The next subsequent-batch of clothes isinserted in tub it during this period J, The reservoir 22 is refilledwith rinse water, the control reset, and washing operations are repeatedon the next batch of clothes as previously described with respect to thefirst batch.

, 'When his desired to empty the machine of an liquids, the drain switchI22 is turned to the drain position. The turning of this switch(indicated by dotted line I22 in Fig. 16) closes contacts I23 to I29inclusive. The closing of switches I23 and I24 energizes motor 33 andvalve I8. The closing of switches I26 to I29 energizes valve 82, pumpclutch solenoid I3, and-valves 19 and respectively and opens relay H4.The closing of contacts 825 causes the tub to spin. The tub I8. beforethe switch I22 is manipulated, can be scrubbed with water which remainsin the tub until switch H6 is manipulated. As the tub I8 then, spins,the water in the tub is centrifugally discharged into reservoir 20 andfrom thence through pump I0 into the sewer connection 84.

The relative position of these parts can be changed. The reservoirs 20,2I and 22 need not M2 is iricticnally held in any position by hub Hit.The hub H36 is pulled against support l3! by sprin W2 and sleeve I33, sothat arm H2 tends to remain wherever lastpositioned. The gear wheel hastwo lugs HQ and 335 which straddle the lower portion I36 of arm H2. Whengear wheel as is turned, (Fig. 11) as indicated by the dotted arrow onthe right, lu I35 carries arm i 42 with it in a clockwise direction, sothat when operation is started and gear wheel 95 is startedcounter-clockwise by motor operation, cam it? closes switch H3 for thenecessary period of time to pump the soap solution from reservoir 29 totub I8. The switch H3, and arm H2, remain frictionally in thesame placeuntil the knob of cam switch 3 to terminate the pumping action.Thereafter the lug I34 moves the arm II2 counter-clockwise during theselected length of time of period B after which the shaft 96a startsrotation to control operations C-I inclusive, to be ready to be againset by lug I35 when the machine is reset. During the resetting operationthe cam llli is moved to the right by the movement of handle 91 (Fig.8), so that the cam it? does not engage switch H3 during the resettingoperation.

The shaft 96a constantly is under a clockwise (as viewed in Fig. 12)turning impulse under the action of spring I38, so that it moves fromthe position shown in Fig. 12 only when turned by drive crank 99. Whenthe control mechanism is reset by the user, and when handle 91 is pulledout the shaft 960. is returned to the Fig. 12 position by spring I38 andis held with pin I00 against stop I39. This returns shaft 96 and knob 98to zero position. The user then turns knob 98 to the desired washingperiod of 5, 10, 15, 20 or other desired number of minutes. I

The moving parts of the driving mechanism are enclosed in casing I50which swings from rods 14 The casing I50 is partially filled with oil,so that allof the moving parts of the driving mechanism are lubricatedby the splash system.

While the form of embodiment of the invention as herein disclosed,constitutes a preferret form, it is to be understood that other formmight be adopted as may come within the soup of the claims. I

- What is claimed is as follows:

1. A driving mechanism comprising a unidirec tionaily rotatable motor, arotatable shaft, a re ciprocable shaft, a solenoid controller, means todrivingly connecting said motor to said rotat able shaft when saidcontroller is electrically 1:

H31 has passed and opened the' one condition, means for drivingiy'connecting said motor to said reciprocable shaft and for maintainingsaid rotatable shaft stationary when said controller is electrically inanother condition, and common switch means for electrically energizingand deenergizing said motor and solenoid controller.

2. A driving mechanism comprising a sleeve member and a shaft membercoaxially arranged, one of said members being a rotatable member and theother being a reciprocable member, a unidirectionally rotatable motor, asolenoid controller, means for drivingly connecting said motor to rotatesaid rotatable member when said controller is electrically in onecondition, and means drivingly connecting said motor to reciprocate saidreciprocable member while maintaining said rotatable member stationarywhen said controller is electrically in another condition, and commonswitch means for electrically energizing and deenergizin said motor andsolenoid controller.

3. A driving mechanism comprising a rotatable sleeve and a reciprocableshaft coaxially arranged, a rotatable driving means, a reciprocatingmechanism operably connected to said reciprocable shaft for changingrotary motion to reciprocating motion, means providing a relativelystationary surface, friction clutch means operable into interconnectingrelationship between said sleeve and either of said means, and means forconnecting and disconnectin said driving means and said reciprocatingmechanism.

4. A driving mechanism comprising a rotatable sleeve and a reciprocableshaft coaxially arranged, a unidirectionally rotatable driving shaft, a.reciprocating means operated by said driving shaft for reciprocatingsaid reciprocable shaft, a clutch element operably connected to saiddriving shaft, a clutch element operably connected to said driven shaft,a spring, means for yieidingly urging said clutch elements together toprovide a rotatable driving connection between the driving shaft andsaid sleeve, a movable brake element for engaging one of said clutchelements to separate the elements and to stop the rotation of said oneelement, and means for moving said brake element into engaging position'5. A driving mechanism comprising a rotatable sleeve and a reciprocableshaft coaxially arranged, a unidirectionally rotatable driving shaft, areciprocating means operated by 'said driving shaft for reciprocatingsaid reciprocable- ,said armature for operating said shaft.

6. A driving mechanism comprising a rotatable sleeve and a reciprocableshaft coaxially arranged, a unidirectionaliy rotatable driving shaft, areciprocating means operated by said driving shaft for reciprocatingsaid reciprocable shaft, a multiple disc clutch including a plurality ofclutch discs operably connected to said driving shaft and a plurality ofclutch discs operably connected to said sleeve, a spring means acting onone of said clutch discs for yieldingly urging said clutch discstogether, a movable brake element for engaging the one clutch disc onwhich the spring means acts for disengaging the multiple disc clutch andstopping the rotation of one set of discs, and means for moving saidbrake element into engaging position.

7. A driving mechanism comprising a rotatable sleeve and a reciprocableshaft coaxially arranged, a, unidirectionally rotatable driving shaft, areciprocating means operated by said driving shaft for reciprocatingsaid reciprocable shaft, a first clutch means for causing the driving,shaft to reciprocate the reciprocable shaft, a second clutcnmeans foroperably connecting said driving shaft to rotate said sleeve, a firstsolenoid for operating said first clutch means, and a second solenoidfor operating said second clutch means.

JOHN B. DYER.

